Reduce to lowest terms 3m^2-3n^2/6m-6n

options
a. -m-n/2
b. m-n/2
c. m+n/2

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft. what is the area of the stage? enter your answer in the box. ft²

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a. p.